Figure 7.2 Block Diagram Of 8-Bit Pwm Timer; Block Diagram Of 8-Bit Pwm Timer - Fujitsu F2MC-8L MB89620 Series Hardware Manual

2
7.

Block Diagram of 8-bit PWM Timer

The 8-bit PWM timer consists of the following six blocks:
• Count clock selector
• 8-bit counter
• Comparator circuit
• PWM generator and output controller
• PWM compare register (COMR)
• PWM control register (CNTR)
n Block Diagram of 8-bit PWM Timer
IRQ4
1 t
PWC output
t : Instruction cycle
inst
PWC output: Timer output bit of the pulse width count timer (PCR2: TO)
140
CHAPTER 7 8-BIT PWM TIMER
CNTR
P/TX — P1 P0
Count clock
selector
X 1
inst
X 16
X 64

Figure 7.2 Block Diagram of 8-bit PWM Timer

Internal data bus
TPE TIR OE TIE
Timer/PWM
P37/PTO Pin
COMR
PWM compare register
8-bit
Start
counter
CLK
Clear
Latch
Over flow
8
Comparator circuit
PWM generator
and
output controller
8
MB89620 series